Human cognitive psychology has always been the research focus in various disciplinary arenas of social sciences, and it is also true of SLA(second language acquisition).

• 摘要中介语的形成在很大程度上取决于第二语言学习者对目标语与母语之间异同之处的分析和判断，也源自于学习者对目标语输入和自身语言输出中语言现象的关注程度。